19408347

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4339}}^1$

素因数の和:4423

約数の個数: 24

約数和(自身を含む): 32497920

約数和(自身を除く): 13089573

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4339, 4473, 13017, 30373, 39051, 91119, 273357, 308069, 924207, 2156483, 2772621, 6469449, 19408347]

約数ペア:

[(1, 19408347), (3, 6469449), (7, 2772621), (9, 2156483), (21, 924207), (63, 308069), (71, 273357), (213, 91119), (497, 39051), (639, 30373), (1491, 13017), (4339, 4473)]